I installed avast! 4.7 home edition today. I registered my email address online, but still didn’t received reg code yet.
I opened the so-called network protection option (I installed the Chinese edition, so I don’t know the exact word), then I found I couldn’t open any site in IE7 (Win vista-32 Business). As soon as I stop network protection, the problem is gone.
I don’t know how this happened. I am worried I cannot use the network protection now. I don’t know If this means that I am online but not safe.